Combine topping ingredients in a medium bowl. Set aside.
Preheat oven to 400°F. Grease a 2 to 2 1/2 quart baking dish, set aside.
In a double boiler over simmering water, or in a large saucepan, melt butter and whisk in flour. Pour in milk and cream, whisk until steaming. Add remaining ingredients, minus pasta. Stir until smooth.
In a separate saucepan, bring water to a boil. Cook pasta according to package directions. Drain and transfer to prepared backing pan.
Pour smooth cheese sauce over pasta, gently stirring to coat pasta well. Sprinkle with topping. Lightly spray with olive oil.
Nutritional information is provided as a courtesy and is an estimate only. Nutrition information can vary for a variety of reasons. For the most accurate data, use your preferred nutrition calculator with the actual ingredients you used to make this recipe.
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